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Full-shell x-ray optics development at NASA Marshall Space Flight Center.

Kiranmayee Kilaru1, Brian D Ramsey2, Wayne H Baumgartner2

  • 1Universities Space Research Association, Huntsville, Alabama, United States.

Journal of Astronomical Telescopes, Instruments, and Systems
|September 9, 2020
PubMed
Summary
This summary is machine-generated.

NASA

Keywords:
direct-fabricationfull-shell replicationhigh-angular resolution x-ray mirrorsx-ray mirror fabricationx-ray opticsx-ray telescopes

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Area of Science:

  • X-ray astronomy optics development
  • Advanced materials science for space applications
  • Precision engineering for scientific instrumentation

Background:

  • Future space missions require advanced x-ray optics.
  • Current technologies face limitations in achieving high-angular resolution.
  • NASA's Marshall Space Flight Center (MSFC) is actively researching solutions.

Purpose of the Study:

  • To develop high-resolution, lightweight grazing-incidence x-ray optics.
  • To address challenges in achieving superior angular resolution for future missions like Lynx.
  • To advance mirror shell fabrication and replication techniques.

Main Methods:

  • Direct fabrication: diamond turning and deterministic computer-controlled polishing.
  • Replication: using figured, polished mandrels.
  • Development of monolithic primary + secondary mirror shells.

Main Results:

  • Both direct fabrication and replication yield monolithic shells.
  • Monolithic shells offer inherent stability, ease of assembly, and low cost.
  • Identified key error sources: fabrication/coating stresses and mounting distortions.

Conclusions:

  • MSFC is making progress in developing advanced x-ray optics.
  • Technological advancements are crucial for controlling figure errors.
  • Continued research is needed to overcome challenges for high-angular resolution.